Monitoring Outdoor Volatile Organic Compounds (VOCs) Concentrations from Traffic Emissions

This project aims to monitor outdoor concentrations of Volatile Organic Compounds (VOCs) attributable to traffic emissions through a comprehensive air quality measurement system. The system utilizes specialized sensors to continuously track VOC levels, as well as gas and smoke concentrations. The core components of the system include a VOC sensor, a DHT11 sensor for temperature and humidity, and a gas sensor. Data from these sensors are transmitted in real-time to ThingSpeak, a cloud-based IoT platform, for continuous monitoring and analysis.To ensure prompt responses to elevated pollutant levels, the system integrates a GSM module to issue alerts when VOC concentrations exceed predefined thresholds. This alert mechanism is augmented by a Zigbee transmitter that communicates with a receiver, specifically designed to relay critical information to traffic authorities. The transmitted data includes current readings and alert notifications. If VOC levels surpass the established thresholds, the system triggers an immediate notification, which is conveyed through GSM messages. The project aims to enhance traffic emission monitoring, improve air quality management, and provide timely alerts to mitigate potential health impacts associated with traffic-related air pollution.